/*
 * Copyright (c) 2025 DuckDuckGo
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.duckduckgo.app.browser.webview

import android.content.Context
import androidx.webkit.WebViewCompat
import com.duckduckgo.app.browser.webview.WebViewInformationExtractor.WebViewData
import com.duckduckgo.di.scopes.AppScope
import com.squareup.anvil.annotations.ContributesBinding
import javax.inject.Inject

interface WebViewInformationExtractor {

    data class WebViewData(
        val webViewVersion: String,
        val webViewPackageName: String,
    )

    fun extract(): WebViewData
}

@ContributesBinding(AppScope::class)
class InternalWebViewInformationExtractor @Inject constructor(
    private val context: Context,
) : WebViewInformationExtractor {

    override fun extract(): WebViewData {
        return WebViewCompat.getCurrentWebViewPackage(context)?.let {
            WebViewData(
                webViewVersion = it.versionName ?: UNKNOWN,
                webViewPackageName = it.packageName ?: UNKNOWN,
            )
        } ?: unknownWebView
    }

    companion object {
        private const val UNKNOWN = "unknown"

        private val unknownWebView = WebViewData(
            webViewVersion = UNKNOWN,
            webViewPackageName = UNKNOWN,
        )
    }
}
